Answer:
stratovolcanoes are one that frequently erupt
Microbes are classified into various groups on the basis of their characteristics to make the study easier.
Answer:
Option 3, Heuristics
Explanation:
Heuristics thinking implies usage of past experiences or judgments or the memory of most relevant and similar incidents to quickly formulate judgments and solutions and make decisions. Such judgments are biased most of the time as they are based on the perseverance of an individual instead of logic and conceptualization of any scenario or incident
Hence, option 3 is correct